Eichaed j



(No Model.)

R. J. BAKER DRILL STOCK.

No. 854,085. Patented Dec. 14, 1886.

WITNEEIEEE.

UNITED STATES PATENT @Errea RICHARD J. BAKER, OF PROVIDENCE,RHODEISLAND.

DRILL-STOCK.

SPECIFICATION forming part of Letters Patent No.,354.085, dated December14, 1836.

Application filed March 1, 1886. Serial No.193,7()1. (No model.)

To all whom it may concern,.-

Be it known that I, RICHARD J. BAKER, of the city and county ofProvidence, in the State of Rhode Island. have invented a certain newand useful Improvement in Ratchet-Drills or Bit-Stocks; and I declarethe following to be a specification thereof, reference being had to theaccompanying drawings.

Like letters indicate likeparts.

Figure l shows, partly in longitudinal section and partly in sideelevation, my invention withtthe lever extended laterally. Fig. 2 showsthe same with the lever closed. Fig. 3 is a front elevation of myinvention. Fig. 4 is a detail view.

My invention relates to ratchet-drills or bitstocks, to which power isapplied by a lever or arm engaging with ratchet or teeth.

It is the purpose of my invention to produce a handle which may be usedas an ordinary rigid straight handle or as a ratchet-drill or rotatingbit-stock at will.

It consists of a hollow handle having a leverarm pivoted therein, whichmay be closed into the handle or extended laterally therefrom, asdesired, a rotating bit stock having ratchets or slots in its upper orlarger end, and mounted upon the end ofthe handle by a screw passingthrough the bit stock into a circumferential groove or channel in theinclosed portion of the handle, and a locking-bar operated by said leverto slide into one ol' the slots of the bitstock when the lever is foldedinto the handle, or to withdraw from said slot when the lever isextended, all as hereinafter fully described, and specifically pointedout in the claims.

-In the drawings, A represents the handle, which may be inade of inet-alor wood, as preferred. It has a deep longitudinal slot, B, as shown inFigs. l and 2. A lever or arm, C, is pivoted to the handle in the slot Bby the pin a. The lever has the shoulders b, c, and d and thenail-crease c. The handle A is cut awayatf to allow the thumb-nail toenter the crease e of the lever C when said lever is closed into thehandle.

The handle A in the rear is grooved and slotted to receive thelocking-bar D with its pin g. rIhe pin g is shouldered or otherwiseadapted to confine the bar D from outward displacement. The pin g has alimited ino-venient in the slot 7ly of the handle A.

The lower end of the handle A is cut down to a smaller diameter to enterthe central bore of the bit-stock E, and has a circumferential channelor groove, m, into which enters the beveled end of a screw, F, passingthrough the bit-stock E. This screw holds the bit-stock to the handle,and yet allows it to rotate upon the handle.

The bit-stock E has the usual socket, n, to receive the bit G. Upon theinner or larger end of the bit-stock E are ratchets or transverse slotso, preferably a quarter of a circle apart. A feed-screw, H, extendsthrough the top of the handle A. A spring-teat, s, inserted in the freeend of the lever C and slightly projecting therefrom, enters acorresponding depression in the handle to confine the lever in positionwhen closed.

The operation of my improved irnplement is as follows: IVhen used as aratchet-drill or rotating bit-stock, the lever C extends laterally fromthe handle A, as seen in Fig. l. The locking bar D is lifted by theengagement of its pin g with the shoulder cof the lever. The shoulder' bof the lever is brought down into one of the slots o ot' the bit-stockE, power is applied to the lever, and the whole handle, stock, and bitare turned together, driving the bit in the usual manner, the screw Hbeing turned as usual to furnish the upper bearing against any suitablesurface. \Vhen the lever has vcompleted its transverse movement, it isslightly raised to disengage its shoulder I) from the slot o, in whichit has rested, and is turned to the next slot 0, (the handle A movingwith it at the same ti1ne,), and, being engaged by depression into thatslot, turns the bit-stock again, as before. During such rotation thebeveled end of the screw F travels in the channel m of the handle A.

To use the handle as au ordinary straight tool-handle, the lever C israised longitudinally and closed into the handle like a knifeblade, thespring-teat s holding it in place suficiently. rlhis movement ofthelever C brings its shoulder d down on the pin g of the locking-bar D,driving it into a slot, o, ofthe bitstock E, as shown in Fig. v2. Thehandle and bit-stock are thus fastened together, and cannot rotateindependently of each other.

The distance between the shoulders c and d of the lever C is long enoughto allow the slight IOO elevation of the lever and the free rotation ofthe handle A, which is necessary in passing the lever `from slot to slotto turn the bitstOck; but the full longitudinal sweep of the lever inclosing into the handle forces down the bar` D into a slot, 0, of thestock E, and confines them rigidly together. This handle is thusconvertible at will into a ratchet-drill and bit-stock of great power,and useful for many purposes. For instance, if a screw-driver isinserted into the socket n of the stock E, a screw may be driven by itin the usual manner as far as the usual hand-grip upon thestraighthandle will force it; but by letting down the lever C and operating thebit-stock, as above described, a great leverage is obtained, which willtighten the screw or drive it yet further.

Itis common in ratchet-drill stocks as heretofore constructed to havethe operating leverarm project at an angle from the stem and to rotatearound it; but by my contrivance the lever has free movement up anddown, forward and back, and folds into the handle, thus making the toolmore compact and more easily portable when not in use as aratchet-drill.

I claim as a novel and useful invention and desire to secure by LettersPatent- 1. In a ratchet-drill or bit-stock, the combi-v nation of thehandle A, having the longitudinal slot B, the lever C, having theshoulder b, and pivoted to said handle at a, and capable of swinginginto the slot B of said handle and to be extended laterally therefrom atwill, the

rotatable bit-stock E, mounted upon the han- 3. The combination of thehandle A, slotted' 'at B and h and channeled circumferentially at m, thescrew lH in the end of said handle, the lever C, having shoulders b c d,and pivoted at a within'said handle, the rotatable bit-stock E,

having slots o at its` inner end and socket nat its outer end, andmounted upon the handle A by the screw F engaging with the channel m,and the locking-bar D, having the pin g engaging the lever C and movablein the slot h of the handle A, substantially as shown.

4. The combination of the hand-le A, having the slot h, the bit-stock E,mounted and rotatable upon said handle and having slots o upon' itsinner end, and the locking-bar D, mounted upon said handle and movablelongitudinally by its pin g in the` slot h, and the lever C, pivoted tosaid handle and having shoulders c d, to engage with the pin g to bringthe bar D into and out of engagement with the slots o of the bit-stock,substantially as described.

5. The combination of the handle A, having the slots B and h and thecircumferential channel m, the screw H at the end of the handle, thelever C, pivoted at a to said handle and having the shoulders b c d, therotatable bit.- stock E, having slots o, for axially locking the stockof the'handle and socket n, and mounted upon the handle A by the screwFl entering into the channel m, and the locking-bar D,

'having the pin g and movable in the slot h,

Witnesses:

J AMES W. WILLIAMs, WARREN R. PERcE.

